Academic
Control method of water and fertilizer concentration in NFT hydroponic system
作者: 时间: 2024-06-07
In the NFT (Nutrient Film Technology) hydroponic system, controlling the concentration of water and fertilizer is one of the key factors to ensure the healthy growth of lettuce. Here are some basic steps and suggestions:
Configuration of nutrient solution: According to research, different ratios of nitrogen, phosphorus, and potassium have a significant impact on the growth process of hydroponic lettuce. For example, when the nitrogen level is 6mmol·L^-1, lettuce can obtain the maximum yield; when the phosphorus level is 0.6mmol·L^-1, the lettuce yield is maximum; when the potassium concentration is 3mmol·L^-1, the lettuce yield Reaches the maximum value.
Frequency of nutrient solution replacement: Studies have shown that replacing nutrient solution in stages can significantly improve the yield and quality of lettuce. For example, in the quality control test of changing nutrient solutions of different concentrations at the end of the growth period, the yield of lettuce reached the maximum under the condition of 2 times the nutrient solution treatment, while under the treatment of 0.5 times the nutrient solution, the soluble protein content, chlorophyll a and chlorophyll b content of lettuce all reached the maximum value. maximum.
Monitoring of nutrient solution: During the production process, water should be added according to the growth conditions of the crops, the concentration and pH of the nutrient solution should be adjusted, and the nutrient solution should be replaced regularly. Nutrient solution management technology is the core part of the soilless cultivation technology system.
Environmental control strategy: Using machine learning algorithms and image recognition technology, the growth status and environmental variables of lettuce can be monitored, thereby automatically adjusting the nutrient solution concentration to always maintain it at the optimal level.
Light and temperature management: In addition to water and fertilizer concentration, light and temperature are also important factors affecting the growth of lettuce. According to the different needs for light and nutrient solution strategies at different growth stages, corresponding environmental control strategies are set to promote the healthy growth of lettuce.
Through the above measures, the water and fertilizer concentration in the NFT hydroponic system can be effectively controlled to meet the growth needs of hydroponic lettuce and achieve the production goals of high yield, high quality, and low consumption.
Article source: Yecaixia Technology
Configuration of nutrient solution: According to research, different ratios of nitrogen, phosphorus, and potassium have a significant impact on the growth process of hydroponic lettuce. For example, when the nitrogen level is 6mmol·L^-1, lettuce can obtain the maximum yield; when the phosphorus level is 0.6mmol·L^-1, the lettuce yield is maximum; when the potassium concentration is 3mmol·L^-1, the lettuce yield Reaches the maximum value.
Frequency of nutrient solution replacement: Studies have shown that replacing nutrient solution in stages can significantly improve the yield and quality of lettuce. For example, in the quality control test of changing nutrient solutions of different concentrations at the end of the growth period, the yield of lettuce reached the maximum under the condition of 2 times the nutrient solution treatment, while under the treatment of 0.5 times the nutrient solution, the soluble protein content, chlorophyll a and chlorophyll b content of lettuce all reached the maximum value. maximum.
Monitoring of nutrient solution: During the production process, water should be added according to the growth conditions of the crops, the concentration and pH of the nutrient solution should be adjusted, and the nutrient solution should be replaced regularly. Nutrient solution management technology is the core part of the soilless cultivation technology system.
Environmental control strategy: Using machine learning algorithms and image recognition technology, the growth status and environmental variables of lettuce can be monitored, thereby automatically adjusting the nutrient solution concentration to always maintain it at the optimal level.
Light and temperature management: In addition to water and fertilizer concentration, light and temperature are also important factors affecting the growth of lettuce. According to the different needs for light and nutrient solution strategies at different growth stages, corresponding environmental control strategies are set to promote the healthy growth of lettuce.
Through the above measures, the water and fertilizer concentration in the NFT hydroponic system can be effectively controlled to meet the growth needs of hydroponic lettuce and achieve the production goals of high yield, high quality, and low consumption.
Article source: Yecaixia Technology